US Bridges

Adobe Road over Rwcd Floodway

Fair

Maricopa County, Arizona · 0.41 E MI of Greenfield R · Structure no. 07840

Built
1991
34 years old
Condition
Fair
inspected July 2023
Type
Culvert
Concrete Continuous
Length
46 ft
5 main spans
Daily traffic
3,653
2019 count
Owner
City
City or Municipal Highway Agency

About this bridge

Adobe Road over Rwcd Floodway is a concrete continuous culvert carrying Adobe Road over Rwcd Floodway in Maricopa County, Arizona. It was built in 1991, so it is 34 years old, younger than the Arizona average of 47.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 3,653 vehicles a day, roughly 3% of them trucks, projected to reach 3,663 by 2039. The structure is 46 ft (14 m) long. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesAdobe Road
CrossesRwcd Floodway
Location0.41 E MI of Greenfield R
RouteCity Street 0
CountyMaricopa County
StateArizona
Coordinates33.43008, -111.72906
Functional classUrban Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating99 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans5
Design loadHS 20
Structure length46 ft (14 m)
Longest span8 ft (2.4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deck20 ft (6.1 m)

Traffic and service

Average daily traffic3,653 (2019)
Projected traffic3,663 by 2039
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Adobe Road over Rwcd Floodway built?

It was built in 1991, making it 34 years old in 2025.

What condition is Adobe Road over Rwcd Floodway in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in July 2023.

How much traffic does Adobe Road over Rwcd Floodway carry?

About 3,653 vehicles per day (2019 count), of which roughly 3% are trucks.

How long is Adobe Road over Rwcd Floodway?

The structure is 46 ft (14 m) long with a longest span of 8 ft (2.4 m).

Who owns Adobe Road over Rwcd Floodway?

It is owned by the City or Municipal Highway Agency.